What materials are generally used for spring materials?

As long as the spring is a steel that can be used as a spring, it is called spring steel, 65.70.85.55Si2Mn, 60Si2Mn, 60Si2CrA, etc. Generally speaking, the carbon content is high.

1. High carbon carbon steel spring wire. Suitable for small diameters. Otherwise, it is not easy to be hardened.
2.60Si2Mn. Applies to overloading.
3.50CrVA. Suitable for variable load and high fatigue occasions.
4.4Cr13. Corrosion and high temperature resistance, can be used as a large spring.
5. Q3-1. Corrosion-resistant and anti-magnetic.
6. QSn4-3. Corrosion-resistant and anti-magnetic.